The Atlantic's In Focus has a great set of photos of underground life. From subways to caves, temples to lakes, hospitals to bike paths, dig sites to mines and more, there's a whole living, breathing and moving current underneath the surface.

I think I'm more impressed of what we've done under the Earth than on top of it. Check out the whole gallery at In Focus [The Atlantic, Photo Credit: Bela Szandelszky/AP]